. >> they believe the fiery crash that killed paul walker and a friend on saturday involved a single speeding car. the l. a. county sheriff's department investigated and ruled out a tip that the crash may have been result of a street race. >> some studies have suggested being overweight or obese may be a benign condition if a person doesn't have problems like high cholesterol, blood pressure, or diabetes. now new research finds being healthy and overweight is just a myth. >> being obese is a cardiovascular event. >> one day after the improved website went live, president obama wants americans to give healthcare.gov another chance. >> and the president today says it is clear there's a high demand out there for affordable care. tara is at the white house with the latest. >> president obama is asking americans who need insurance to come back to newly overhauled healthcare.gov. >> do not let the initial problems discourage you because it's working better now and it's going to keep on working better over time. >> the obama administration says more than 1 million people logged on to the si